Discrete dislocation plasticity analysis of single crystalline thin beam under combined cyclic tension and bending
Discrete dislocation plasticity analysis of single crystalline thin beam under combined cyclic tension and bending
复制标题
单晶薄梁在拉弯联合作用下的离散位错塑性分析
DOI:
10.1016/j.actamat.2007.11.032
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发表时间:
2008-04
期刊:
影响因子:
9.4
通讯作者:
Huang, Minsheng
中科院分区:
文献类型:
--
作者:
Ouyang, Chaojun;Hou, Chuantao;Li, Zhenhuan;Huang, Minsheng
The cyclic plastic response of a single crystalline thin beam subject to combined cyclic tension and bending is analyzed using two-dimensional discrete dislocation plasticity. In this contribution, special attention is paid to the difference in the inherent mechanism of the size effect for different cyclic loads. Results show that the cyclic plastic response has a strong size effect for both cyclic pure tension–compression and pure bending. However, the inherent mechanisms are different. The dislocation starvation mechanism dominates the cyclic tension–compression while the geometrically necessary dislocation dominates the cyclic pure bending. When the combined cyclic tension and bending are applied to the thin beam, the cyclic moment–rotation response shows strong size effect while the stress–strain response shows weak or even no size effect. In addition, it is also found that the cyclic loading paths have considerable influences on the shape of the cyclic stress–strain loops.
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影响因子:
5.3
作者:
M. Gurtin
通讯作者:
M. Gurtin
影响因子:
2.1
作者:
W. Nix;J. Greer;G. Feng;E. Lilleodden
通讯作者:
W. Nix;J. Greer;G. Feng;E. Lilleodden
影响因子:
9.8
作者:
H.H.M. Cleveringa;V. Giessen;A. Needleman
通讯作者:
H.H.M. Cleveringa;V. Giessen;A. Needleman
DOI:
10.1007/978-3-662-53605-6_110-1
发表时间:
2020
期刊:
Encyclopedia of Continuum Mechanics
影响因子:
--
作者:
L. Bardella
通讯作者:
L. Bardella
影响因子:
2.5
作者:
E. Aifantis
通讯作者:
E. Aifantis